Finding the Fourth Proportional to 1,107,722.61, 1,528,666.74 and 624,195.09
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Solution
The fourth proportional to 1,107,722.61, 1,528,666.74 and 624,195.09 is: 861,394.60
Step by Step Solution
- Step 1: Write the proportion equation
1,107,722.61 : 1,528,666.74 = 624,195.09 : x - Step 2: Convert to fraction form
1,107,722.61/1,528,666.74 = 624,195.09/x - Step 3: Cross multiply
1,107,722.61x = 1,528,666.74 × 624,195.09 - Step 4: Simplify right side
1,107,722.61x = 954,186,273,354.31 - Step 5: Solve for x
x = 954,186,273,354.31/1,107,722.61 - Step 6: Final answer
x = 861,394.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.